Pre/Power Amplifiers

Surprises, at my age, could prove fatal, so I neither invite nor encourage them. Even pleasant ones. Neither do I relish my preconceptions being challenged: 'Old dogs, new tricks...' That said, and despite spending countless hours listening to assorted Constellation systems over the years, I must admit to being unexpectedly bowled over by these Inspiration Mono 1.0 power amplifiers.

At first glance, one might be forgiven for wondering what's going on here – after all, California-based Constellation Audio already has a Centaur II stereo power amplifier on its books, selling for a not inconsiderable £48,000. So the $64,000 question must surely be 'what is this second version, dubbed the Centaur II 500 Stereo, bringing to the party?'.

Long anticipated, Constellation’s series two amplifiers witness the transition from huge linear supplies to custom switchmode PSUs. Weight is slashed, and performance boosted

Californian amplifier specialist Constellation Audio isn’t one to regularly refresh its product catalogue, so when – after years of maintaining the same models – it begins a complete overhaul of its entire range, audiophile ears prick up. First to hit the market are the new Inspiration 2 and Revelation 2 series, with the latter’s stereo pre/power system being debuted at the UK Hi-Fi Show Live 2024. These will be followed by the Performance 2 and Reference 2, with the lineup then topped off by the flagship Statement amps first ‘teased’ in 2023 at the Munich High End show.

In the early days of hi-fi, the budget amplifier was usually considered an object of disdain, to be quickly upgraded as soon as funds allowed. More capable designs such as the NAD 3020 changed this view and by the late '70s improvements in component technology had made it possible to produce really good amplifiers that still could be sold for reasonable prices.

Avoirdupois aside, Dan D'Agostino Master Audio Systems' Momentum M400MxV monoblock just may be the least fussy or fiddly power amp one can aspire to in the extreme high-end. Of course, something cute and tiny like a PS Audio Sprout [HFN Feb '15] or Quad Vena [HFN Jan '15] can be lifted with one hand and requires no degrees in electronics, but that's 'real world' gear. At £90,000 per pair, the M400MxVs are as exclusive as it gets, and such a strong physical presence is de rigueur.

Ordinarily, I prefer to ignore the vexing topic of prices. My attitude is simple: if I can't afford something, I don't take it out on the world. I can't afford a Bugatti T57SC Atlantic, but I don't hate Ralph Lauren for owning one. So let's get two things out of the way, the first being that the D'Agostino Momentum HD Preamplifier costs £47,998, making it one of the most expensive control units on the planet.

It struck me, around halfway through the first track, that designer/CEO Dan D'Agostino was emulating the way supercar companies delineate their model ranges. Hey, I needed something to explain why the new Progression S350 Stereo power amplifier at £34,998 costs just over half that of the Momentum S250 MxV's £54,998, and yet it is over two times the size and rated at 100W more per channel: 350W vs 250W. Also, at 454x230x584mm (whd) against a Momentum's 318x133x546mm, the Progression S350 dwarfs the dearer unit. It was like the comedy Twins, with Schwarzenegger standing next to DeVito.